The blu-ray worked exactly as it should. Unfortunately, it will not fill the screen of my ultra wide 21 x 9 monitor. Apparently they do this on purpose. I thought it was no big deal since I have the digital copy as well, but it does the same thing. The only way I can get these movies to work properly on a 21 x 9 screen is to stream them on Kodi, which is piracy. How embarrassing for them, that the pirate community can do a better job displaying these movies than the movie industry can.
As for the movie, in my opinion the best movie of 2019. I liked this better than End Game. The mix of live action and animation is perfect. I literally forgot I was watching animated characters. Alita is awesome. An amazing character done with great care to match as much as possible the original Manga.
I hope this movie did well enough for some sequels. I would be very disappointed if this was the only one ever made.